commit b50dd7920d1cd7b37016929faa175578de12dd27
author Kent Overstreet <kent.overstreet@gmail.com> Sat Sep 07 13:16:41 2019 -0400
committer Kent Overstreet <kent.overstreet@linux.dev> Sun Oct 22 17:08:26 2023 -0400
tree b1be5a83eabba7094c5e332db790c60817c69ee5
parent 89b0511826c1bde65f57a2e051ee9fcb274bff69

bcachefs: Fix a null ptr deref

rbio->c wasn't being initialized in the move path

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/move.c

diff --git a/fs/bcachefs/move.c b/fs/bcachefs/move.c
index 05bb74a..d01c96f 100644
--- a/fs/bcachefs/move.c
+++ b/fs/bcachefs/move.c
@@ -436,7 +436,8 @@ static int bch2_move_extent(struct bch_fs *c,
 				 GFP_KERNEL))
 		goto err_free;
 
-	io->rbio.opts = io_opts;
+	io->rbio.c		= c;
+	io->rbio.opts		= io_opts;
 	bio_init(&io->rbio.bio, NULL, io->bi_inline_vecs, pages, 0);
 	io->rbio.bio.bi_vcnt = pages;
 	bio_set_prio(&io->rbio.bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));